A new set of air-quality evaluation standards under discussion is likely to include readings of PM2.5, the tiny airborne pollutants that cause haze and can damage the human respiratory system.
一套新的空气质量评估体系拟把PM 2.5检测值纳入其中。PM 2.5是造成天气阴霾，并能损害人体呼吸系统的微小空气污染物。
A new set of air-quality evaluation standards under discussion is likely to include readings of PM2.5, the tiny airborne pollutants that cause haze and can damage the human respiratory system.
一套新的空气质量评估体系拟把PM 2.5检测值纳入其中。PM 2.5是造成天气阴霾，并能损害人体呼吸系统的微小空气污染物。
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